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Finding the Fourth Proportional to 51,259.40, 76,897.02 and 21,677.40

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Solution

The fourth proportional to 51,259.40, 76,897.02 and 21,677.40 is: 32,519.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,259.40 : 76,897.02 = 21,677.40 : x
  2. Step 2: Convert to fraction form
    51,259.40/76,897.02 = 21,677.40/x
  3. Step 3: Cross multiply
    51,259.40x = 76,897.02 × 21,677.40
  4. Step 4: Simplify right side
    51,259.40x = 1,666,927,461.35
  5. Step 5: Solve for x
    x = 1,666,927,461.35/51,259.40
  6. Step 6: Final answer
    x = 32,519.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.